Procitaj malo o tome:
sprintf
a do tada evo ti mali primer za C i C++
Code:
// Dev-Cpp 4.9.9.2 with Mingw/GCC 3.4.2
#include <iostream>
#include <sstream>
//#include <cstdlib>
//#include <string>
using namespace std;
int main(int argc, char *argv[]){
int i = 321;
char buff[11]; // niz karaktera: C string
string s; // C++ string (klasa string)
// C:
sprintf( buff, "%d", i );
printf("Ovo je C-string : %s\n",buff);
// C++:
i = 123;
stringstream ss;
ss<<i;
s = ss.str();
cout<<"Ovo je C++ string: "<<s<<endl;
strcpy(buff, s.c_str());
printf("Ponovo C-string : %s\n",buff);
system("PAUSE");
return EXIT_SUCCESS;
}